<!doctype html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Bootstrap demo</title>
  <link href="bootstrap/css/bootstrap.min.css" rel="stylesheet">
</head>

<body>
  <div class="container-fluid mt-3">
    <h1>创建相等宽度的列</h1>
    <p>创建三个相等宽度的列! 尝试在 class="row" 的 div 中添加新的 class="col" div，会显示四个等宽的列。</p>
    <div class="row">
      <div class="col p-3 bg-primary text-white">.col</div>
      <div class="col p-3 bg-dark text-white">.col</div>
      <div class="col p-3 bg-primary text-white">.col</div>
    </div>
  </div>

  <script src="bootstrap-5.2.3-dist/js/bootstrap.min.js"></script>
</body>

</html>